What is diference between ELCB & ELMCB?Also how its application for use in design area?

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Why derivative controller is not used in control systems?

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how much allowable resistance that can be difference in motor all coils?

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What is the normal value of delta in rotor angle stability or transient stability? Why it selected so?

1 Answers  

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An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

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How we can calculate the capacity the Air Condition capacity? like 1 or 1.5 ton's, What is the means of volume of Ton's in capacity of Air Compressor? Why in ton's,? not any other Volume?

2 Answers  

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what is auto transformer?

4 Answers  

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in which direction real power and reactive power flow and why???????

3 Answers  

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why does voltage generation at 11 kv?

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what types of cable used in underground coal mining?

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What are documents to be required for export of the material?

1 Answers   Siemens,

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it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

0 Answers   TATA,

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